Rules Queston

[BonziBasketball]

I was playing in an intramural game and had a question about a call. A player on the other team got a defensive rebound and I came from behind and hit it out of his hands. The ball bounced and stayed in bounds. I went out of bounds, jumped back in, planted both feet therefore establishing position and then picked up the ball that had been bouncing untouched near the sideline. Is this a violation??? It was called a turnover in the game.